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ST-H Backflow Preventers
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As a safety fitting, backflow preventers are used in installations that are connected to the drinking water network. Non-drinking water cannot flow back in the event of a pressure drop in the drinking water network.


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Herco Wassertechnik GmbH
Neckar, Germany
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Operating pressure 0 – 10 bar
Operating temperature 5 – 65 °C
Conditions of use Liquids up to and including liquid category 4 according to DIN EN 12729 and EN 1717 are protected.

Applications of ST-H Backflow Preventers: 
  • Safety fittings (mandatory by law) for installations connected to the drinking water network.

Advantages of ST-H Backflow Preventers

  • Approved in compliance with ACS and DIN/DVGW.






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